So I managed to snag a close-to-new Echo Glass Switch rod (FG-3106). Came in the mail yesterday. I carved out just enough time to take it to the park for a little lawn casting. As you all know, it's pretty hard to water load with a lawn, but I wanted to (1) see if I remembered how to execute double Spey and Snap T casts, and (2) get some kind of feel for the rod.
Some of the folks over at Speypages described using regular WF5 lines with some success. So I grabbed a Hardy Bougle reel I have spooled up with a Cortland WF5F 444.
On (1): I still remember how to cast. On (2): the rod balances nicely with the Bougle. Casts felt ok considering the fact that I wasn't on the water. I wasn't trying to shoot any, but rather just to get the line out nicely for 30 or 40 feet. Bonus - rod and reel look super cool too - like a 3/4 version of a classic Spey outfit. The verdict: I can't wait to get this rig on the water.